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arXiv 1909.09076math.NAcs.NA
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具有$(2α+1)$阶收敛性的分数阶Traub方法及其稳定性

A fractional Traub method with $(2α+1)$th-order of convergence and its stability

Giro Candelario, Alicia Cordero, Juan R. Torregrosa

摘要:

为了利用分数阶导数求解非线性方程的根,已经提出了一些分数阶牛顿法。本文介绍了一种$α+1$阶的分数阶Newton方法,并与另一种$2α$阶的分数阶Newton方法进行了比较。我们还介绍了一种阶为$2α+1$的分数阶Traub方法,并与它的第一步(阶为$α+1$的分数阶Newton方法)进行了比较。对每种情况下的初始估计的依赖性进行了一些测试和分析。

英文摘要:

Some fractional Newton methods have been proposed in order to find roots of nonlinear equations using fractional derivatives. In this paper we introduce a fractional Newton method with order $α+1$ and compare with another fractional Newton method with order $2α$. We also introduce a fractional Traub method with order $2α+1$ and compare with its first step (fractional Newton method with order $α+1$). Some tests and analysis of the dependence on the initial estimations are made for each case.

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